Give examples of what functions an information system should have, and what the basic data processin

Library management system, ticketing system, teaching management system, etc.

For example, the main functions of the library management system: the system includes the following modules: identity verification, borrowing books, returning books, printing reminders, information inquiry, system maintenance and withdrawal.

Structure. Infrastructure layer: It consists of hardware, system software, and networks that support the operation of computer information systems.

Resource management layer: including all kinds of structured, semi-structured and unstructured data information, as well as various resource management systems that realize information collection, storage, transmission, access and management, mainly database management systems.

Catalogue service good leather system, content management friend imitation system.

Wait. Business logic layer: It is composed of a set of information processing ** that implements various business functions, processes, rules, policies and other application services.

Application presentation layer: It is through human-computer interaction and other ways to closely combine business logic and resources, and show users the results of information processing in a variety of forms.

The hardware system consists of the following five parts: combinator, controller; storage devices; input devices; Output device. The software system includes:

There are two parts: system software and application software.

Hello dear, glad to answer for you. A complete information system is usually composed of a complete computer system, consisting of hardware and software systems. The hardware defense system consists of five parts:

combinators, controllers; storage devices; input devices; Output device. The software system includes two parts: system software and application software.

where the hardware system. The hardware system is the Kaizhao core of the computer system, the actual physical device for information processing, including the first processor, memory, input and output control system, and various external devices. The interface that connects people to hardware systems is the software system.

The five basic functions of an information system: input, storage, processing, output, and control.

Input function: The input function of the information system is determined by the purpose to be achieved by the system and the capabilities of the system and the permission of the information environment.

Storage function: Storage function refers to the ability of the system to store various information materials and data.

Processing function: Data processing tools: Online analysis and processing (OLAP) and data mining (DM) technology based on the warehouse technology of the digital circle.

Output function: The various functions of the information system are designed to ensure the optimal output function in the end.

Control function: control and manage the various information processing equipment that constitutes the system, and control the entire information processing, processing, transmission, output and other links through various programs.

Information system is a man-machine integrated system composed of computer hardware, network and communication equipment, computer software, information resources, information users and rules and regulations for the purpose of processing information flow.

From the perspective of the development and system characteristics of information systems, it can be divided into five types: data processing system, management information system, decision support system, expert system and virtual office.

Data Processing System (DPS).

Management Information System (MIS).

Decision Support System (DSS).

Expert systems: A subset of artificial intelligence (AI).

Office Automation & Virtual Office (OA).

The management hierarchy can be divided into two levels: manager information system, marketing information system, manufacturing information system, financial information system, human resources information system, and information resource information system. This is a logical MIS rather than a physical MIS, also known as an organizational information system.

What should be included in the analysis of information systems is illustrated separately with examples.

Systems analysis should include: systematic investigation: comprehensive and authentic investigation is the basis of analysis and design; There are a lot of business, people, data, and information involved.

Organizational structure and function analysis: It has three main contents: organizational structure analysis; Analysis of the connection between business processes and organizational structure, and a list of business functions.

Business process analysis: When analyzing the organizational structure and function analysis, it is necessary to string together the information about the business process in the system investigation from the perspective of an actual business process for further analysis, and the business process analysis can help us understand the specific processing process of the business, find out the errors and omissions in the investigation of the system, modify and delete the unreasonable parts of the original system, and optimize the business processing process on the basis of the new system. Data & Data Flow Analysis:

It is the basis for establishing the database system and designing the functional module de-combustion treatment process. Function Data analysis: After a detailed understanding and formal description of the business process, management function, data flow and data analysis of the actual system, systematic analysis can be carried out on this basis.

This method is used to analyze issues such as the rationality and completeness of the collected data. Analysis of the logical scheme of the new system: After analysis and optimization, the management mode to be adopted by the new system.

For example, the student registration system used by your school is an information system.

Information system is a man-machine integrated system composed of computer hardware, network and communication equipment, computer software, information resources, information users and rules and regulations for the purpose of processing information flow.

There are five basic functions, namely, the input, storage, processing, output and control of information. The information system has gone through three stages of development: simple data processing information system, isolated business management information system, and integrated intelligent information system.

The role of information systems is somewhat different from that of other systems, which is not engaged in a specific physical work, but is related to the coordination of the whole picture. Thus, the larger the organization, the greater the economic benefits of improving the information system. The functioning of information systems is closely linked to the efficiency of the organization as a whole.

Enterprise information system, this involves too wide, it is recommended that you be specific.

Please be specific when you ask a question.